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[src/trunk]: src/sys/dev/pci Adjust the default descriptor sizes for ixl(4)
details: https://anonhg.NetBSD.org/src/rev/5951dbce3300
branches: trunk
changeset: 942777:5951dbce3300
user: yamaguchi <yamaguchi%NetBSD.org@localhost>
date: Wed Aug 19 09:07:57 2020 +0000
description:
Adjust the default descriptor sizes for ixl(4)
These decreasements has no impact for throughput
while forwarding 64-1518 byte packets.
diffstat:
sys/dev/pci/if_ixl.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diffs (29 lines):
diff -r 8a28ccc7a07d -r 5951dbce3300 sys/dev/pci/if_ixl.c
--- a/sys/dev/pci/if_ixl.c Wed Aug 19 09:03:50 2020 +0000
+++ b/sys/dev/pci/if_ixl.c Wed Aug 19 09:07:57 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_ixl.c,v 1.72 2020/08/19 09:03:50 yamaguchi Exp $ */
+/* $NetBSD: if_ixl.c,v 1.73 2020/08/19 09:07:57 yamaguchi Exp $ */
/*
* Copyright (c) 2013-2015, Intel Corporation
@@ -74,7 +74,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_ixl.c,v 1.72 2020/08/19 09:03:50 yamaguchi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_ixl.c,v 1.73 2020/08/19 09:07:57 yamaguchi Exp $");
#ifdef _KERNEL_OPT
#include "opt_net_mpsafe.h"
@@ -762,8 +762,8 @@
static bool ixl_param_nomsix = false;
static int ixl_param_stats_interval = IXL_STATS_INTERVAL_MSEC;
static int ixl_param_nqps_limit = IXL_QUEUE_NUM;
-static unsigned int ixl_param_tx_ndescs = 1024;
-static unsigned int ixl_param_rx_ndescs = 1024;
+static unsigned int ixl_param_tx_ndescs = 512;
+static unsigned int ixl_param_rx_ndescs = 256;
static enum i40e_mac_type
ixl_mactype(pci_product_id_t);
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